
Surf Forecasts:
Jaconé surf forecast from 3 Sep 2026:
- Best quality surf: Thursday 3 Sep, 9PM (local time) - 5ft (1.6m), 12s period, S swell with offshore winds.
- Most powerful swell: Thursday 3 Sep, 6PM (local time) - 6ft (1.8m), 12s period, S swell with 894 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 9PM (local time) - 5ft (1.6m), 12s period with S swell.
Best Forecast Surf Conditions for Jaconé this week:
The surf forecast for Jaconé over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 03) at 9PM. The primary swell is predicted to be 1.6m and 12s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Jaconé in the next 16 days are 1.8m 12s and forecast to arrive on Thursday (Sep 03) at 6PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Tuesday (Sep 08) at 3AM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Thu 3rd Sep) | 5ft (1.6m) 12s |
| Best Surf | 9PM (Thu 3rd Sep) | 5ft (1.6m) 12s |
| Most Powerful | 6PM (Thu 3rd Sep) | 6ft (1.8m) 12s |
Table - best surf conditions forecast for Jaconé over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s shaping up for Jaconé.
We’re starting off with a bit of a mixed bag, but there’s some real promise on the horizon. The first few days are a bit of a write-off, but don’t lose hope. The ocean gets its act together as we move through the period.
Thursday, September 3rd kicks things off with a solid 7ft south swell, but the wind is a bit of a spoiler. The morning is clean with a light offshore breeze, giving us some decent lines. The water is sitting at 73°, which is about average for this time of year. The combined energy is a moderate 992, so there’s some push behind it. By afternoon, that wind swings east and picks up to 19 mph, turning it cross-offshore and making it less appealing. It’s a brief window of fun for the early birds.
Friday, September 4th is a better day. The swell drops to 4ft from the SSE, but the wind goes glassy-light offshore in the morning. It’s clean, with a combined energy of 640, making for some fun, user-friendly waves. This is a good one for a long session.
Saturday, September 5th and Sunday, September 6th are a bit of a dud. The swell gets small and the wind is all wrong – onshore and cross-onshore. The energy drops to between 100 and 335, and the conditions are messy. Not worth paddling out for.
Monday, September 7th sees a bump in size with a 6ft SSW swell, but the period is a short 8 seconds. The wind is cross-offshore, keeping it clean enough, but the energy is 485. It’s surfable, but not the pick of the week.
Tuesday, September 8th is a solid call. A 5ft south swell with a 10-second period, light offshore winds, and moderate energy of 553. Clean, consistent, and good for intermediates.
Wednesday, September 9th and Thursday, September 10th bring a shift in direction. We get east swell, 6ft to 6ft, with offshore winds both mornings. The periods are short (7-8 seconds), so it’s a bit bumpy and not as powerful, but the clean conditions make it fun for a cruise.
Friday, September 11th and Saturday, September 12th are tiny. Glassy mornings with 2ft to 3ft swell, but very low energy (138-146). You’d need a longboard and a prayer.
Sunday, September 13th is a write-off. Strong onshore winds and tiny swell.
Monday, September 14th is a return to form. A 3ft SSW swell with a long 11-second period, clean cross-offshore winds, and energy of 364. Nice, clean lines for a longboard.
Now, the standout of the whole forecast is Tuesday, September 15th. This is the one. A 8ft S swell, with a 10-second period, and light offshore winds. The combined energy is a powerful 1599. This is solid, punchy surf. It’s a bit on the bigger side, so it’s better for experienced surfers, but the conditions will be excellent. The water is still around 73°, and the offshore breeze will groom it perfectly. This is the morning to be in the water.
Wednesday, September 16th is another good one. A 5ft south swell, glassy conditions in the morning, and energy of 537. Clean, fun, and a nice follow-up to the big day.
Thursday, September 17th brings a 5ft SSW swell with a very long 14-second period. The energy is 1037, and it’s glassy. This is a proper groundswell. The long period means it’ll be super clean, with long waits between sets, and it will be best at a point or reef, not a beach break. The water is still average for the time of year.
Friday, September 18th is a big one, but for experts only. An 8ft south swell with a massive 16-second period, hitting a combined energy of 4054. That’s a huge amount of power. The wind is light cross-shore in the morning, so it will be clean, but this is serious. Only for the most experienced, and you’ll want to be at a reef or point break where those long-period lines can really stand up. Afternoon onshore winds will ruin it.
So, to sum it up: the best bet for the average surfer is Tuesday, September 15th morning. For the experienced crew looking for a challenge, Friday, September 18th morning is the big one, but it’s a long way out, so keep an eye on the forecasts.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Sat night. Warm (max 26°C on Fri morning, min 18°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 31mm), heaviest during Sun afternoon. Warm (max 21°C on Sun morning, min 16°C on Mon night). Winds increasing (light winds from the ESE on Sun night, fresh winds from the NE by Tue night). | ||||||||||||||||||||
Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | S 11 | S 12 | S 12 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSW 11 | SSW 10 | SSW 9 | S 8 | SSW 8 | SSW 10 | S 10 | S 10 | S 10 | S 10 | E 7 | E 7 | E 7 |
Wave Graph | |||||||||||||||||||||
969 | 963 | 617 | 314 | 214 | 150 | 85 | 59 | 22 | 135 | 258 | 496 | 385 | 784 | 736 | 509 | 392 | 361 | 295 | 219 | 261 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross | cross-on | on | cross-off | glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | off | cross-off | off | off | cross-off | off |
High Tide | 5:57PM0.73m | 9:34AM0.80m | 6:52PM0.67m | 11:33AM0.87m | 10:37PM0.65m | 12:30PM0.95m | 11:48PM0.74m | 1:13PM1.01m | 00:29AM0.84m | 1:48PM1.04m | 1:03AM0.95m | 2:17PM1.04m | 1:34AM1.03m | ||||||||
Low Tide | 1:38PM0.43m | 1:49AM0.27m | 3:04PM0.50m | 3:12AM0.26m | 4:32PM0.51m | 4:32AM0.19m | 5:40PM0.47m | 5:39AM0.11m | 6:28PM0.42m | 6:33AM0.02m | 7:07PM0.37m | 7:19AM-0.03m | 7:41PM0.31m | ||||||||
5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:52 | — | — | |
— | 5:39 | — | — | 5:40 | — | — | 5:40 | — | — | 5:40 | — | — | 5:40 | — | — | 5:42 | — | — | 5:42 | — | |
mm | — | — | — | — | — | 1 | 1 | 4 | 6 | — | 6 | 7 | 8 | 6 | 4 | — | — | — | — | — | — |
Temp °C | 23 | 23 | 19 | 26 | 25 | 22 | 23 | 22 | 21 | 21 | 20 | 18 | 17 | 17 | 17 | 17 | 17 | 18 | 23 | 25 | 20 |
Feels °C | 20 | 19 | 16 | 27 | 26 | 22 | 23 | 23 | 24 | 22 | 18 | 15 | 16 | 15 | 16 | 17 | 16 | 16 | 21 | 24 | 19 |
Swell 1 Height (m) Direction Period (s) | S 11 | S 12 | S 12 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | E 8 | SSW 10 | E 8 | S 8 | SSW 8 | SSW 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 |
969 | 963 | 617 | 314 | 214 | 150 | 85 | 59 | 22 | 135 | 32 | 496 | 385 | 784 | 736 | 509 | 392 | 361 | 192 | 120 | 81 | |
Swell 2 Height (m) Direction Period (s) | E 9 | — | E 10 | E 8 | E 8 | E 8 | E 9 | E 9 | SSE 10 | ESE 8 | S 14 | E 8 | SE 6 | S 20 | E 8 | SSE 7 | SE 7 | S 16 | S 16 | SSW 10 | S 13 |
23 | — | 16 | 72 | 63 | 50 | 37 | 36 | 19 | 22 | 36 | 11 | 35 | 7 | 6 | 38 | 44 | 5 | 5 | 19 | 87 | |
Swell 3 Height (m) Direction Period (s) | — | — | S 14 | S 12 | S 11 | SSW 10 | SW 4 | WSW 4 | SSW 11 | SSE 10 | SSE 10 | ENE 8 | S 11 | S 20 | — | S 18 | SSE 13 | S 16 | S 16 | S 15 | SE 14 |
— | — | 4 | 12 | 10 | 10 | 4 | 4 | 22 | 9 | 9 | 11 | 65 | 7 | — | 6 | 35 | 5 | 20 | 38 | 8 | |
Wind waves Height (m) Direction Period (s) | — | E 4 | ENE 6 | ENE 7 | — | W 2 | — | S 3 | ESE 3 | WSW 2 | SSW 9 | — | — | — | — | ESE 6 | E 6 | E 7 | E 7 | E 7 | E 7 |
— | 23 | 77 | 242 | — | 1 | — | 1 | 2 | 1 | 258 | — | — | — | — | 72 | 91 | 222 | 295 | 219 | 261 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 53 | 0 | 0 | 10 | 64 | 21 | 0 | 0 | 58 | 58 | 332 | 0 | 53 | 0 | 0 | 10 | 0 | 25 | 10 | 0 |
Best forecast wave conditions in Rio de Janeiro | |||||||||||||||||||||
Best forecast wave conditions in Brazil | |||||||||||||||||||||
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Information about the Jaconé Surf forecast
The above surf forecast table for Jaconé provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Jaconé can be found by selecting the local surf guide option on the grey menu. Our Jaconé surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Jaconé) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Jaconé may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Jacone is 14 km (9 miles) from the city of Saquarema. If you plan a holiday in Rio de Janeiro, look for hotels and other accommodation in Saquarema. Saquarema has rooms for a wide range of budgets as well as car hire and transport links.










